Washing-machine.



R, E. CAMPBELL.

WASHING 'MAGHNL vAPPLIOMION NLE JUNE 11, 191s.

l, Patented Aug. 18, 1914,

IN V'ICN T012 VJTNESSES:

ROBERT E. CAMPBELL, F BERKELEY, CALIFORNIA.

WASHING-MACHINE.

Specification of Letters Patent.

Patented Aug. 18, 1914.

Application led June 11l 1913. Serial No. 773,003.

To all'wtoni it may cof/wem lie it known that I, ROBERT E. Cmrrnnm., ay citizen of the United States, residing at Berkeley, in the county of Alameda and State of California, have invented new and useful Improvements in Washingdtlachines,

of which the following is a specification.

This invention relates to clothes washing machines, and especially pertains to improvements in the construction of washing tanks of the rockable type and particularly the style or kind .on which I obtained Letters Patent of the United States on the 24th dayof September, 1907, No. 866,912.

It is the object of this invention to so improve the construction of the washing tank as to increase the efficiency and rapidity of the washing action.

The invention primarily resides in disposing a series of suction cups in the end portions of the tank against which the clothing and liquid in the tank are impelled when the latter' is rocked; these cups being provided for the purpose of forcing the liquid through. the clothing and for momentar'y retaining the clothing against the ends of the tank as the ends move to their uppermost position, and which will act to suddenly release the clothing when one end of the tank reaches its uppermost position and cause them to gravitate rapidly to the lower end of the tank.

The invention further consists of the parts and the construction and combination of parts as hereinafter more fully described and claimed, having reference to the accompanying drawings, in which- Figure 1 is a side 'elevation of the inven tion with parts broken away. F ig. 'Q is a detail vertical section on the line X-X of Fig. 1.

In the drawings A represents a rectangular tank formed of any suitable material having a smooth bottom 2 and inwardly inclined ends 3. The top of the tank is inclosed as at 4 and is 'formed with an opening 5 through which the clothing and liquids are introduced into the tank; a cover 6 being provided for closing the opening 5 during the washing operation. The tank A is pivotally mounted at 7 toa suitable supporting frame 8; the pivotal connection be' tween the frame 8 and the tank A lbeing preferably at a point to one side ofthe longitudinal center of the tank' so that its ends will sweep in arcsv of different lengths and require a short stroke by the operator to tilt the bottom to the angle required to slide the clothes from end to end. A spring 10 having one end attached to the frame 8 and the other connected to a hanger 11 mounted on the underside of the tank A, acts to normally retain the tank A in a horizontal position.

The essence of the present invention resides in disposing a series of suction cups 12 in the ends of the tank A. The cups 12 are preferably arranged in staggered rows across the lower portion of the ends 3 and open to the interior of 'the tank, as shown in the drawings. The suction cups 12 may be formed rof any suitable material and attached to the ends 3 of the tank in any desired manner, but are preferably formed integral with the ends which are usually constructed of sheet metal; the cups 12 being stamped therein. The cups 12 are preferably cylindrical in form with their axes extending perpendicular to the faces of the ends 3 of the tank.

In the operation of the invention the clothing to be washed is placed in the tank together with the necessary liquids and such washing chemicals as may be required. The

cover Gis then secured in lace and the tank A is rocked on its pivotafbearing 7 in any suitable manner to cause the clothing and liquid to alternately travel from one end of the tank to the other. As the clothing and liquid is impelled against the open ends of the suction cups at the lower end of the tank the air in the cups will be forced out in such manner that when this end of the tank is elevated, the cups will have a sucking action which tends to hold the clothing against the cups as the end of the tank moves upward. The liquids in the tank will immediately move toward its lower end, and such liquid as may be held in the suction cups, on the upwardly moving end of the tank by the clothing extending over the open ends of the cups, will be gradually replaced' by air, which will enter the cups through the clothingv and thereby break the vacuum. moment the sucking action of the cups is overcome by the breaking ef the vacuum therein, either from -the passa e of a-ir through the clothing or by the welght of the clothing, the latter will be suddenly released and causedto travel with considerable rapidity into thel body of li uid previously collected at the lower end o the tank and against the open ends of the cups 12. The

The

clothing in stiiking the of iiqnid the which the liquids inthe tank may bev drawn f lower. end of the. tank causes the liquid to oit when desired. lt is obvious that the ends passthrough the weaves o1: mesh of the ian of the tank, the Gross section of the tank,

ric which have been loosened by the aetion' and the suction oops, may oe of any suitable 55 5 of the air drawn therethrough means oi shape othei than tiene shown; the form here the suction oupson the opposite end.- o' the ,illustrated being the pieteir'edV 'oim and is tank. The mass oi clothing moving against l snliieet to many vaifiations. the open ends of the suction oups at the having this described my invention, What -lower end of the tank with eensideiable i claim and' desiiesecure by Letters 60 lo fonce causes a portion. of the clothing being isz@ forced a short distan-ee into openende l. A. elethes Washing machine comprising of'-l the oups l2,V tiieeoy vokising the iattei, a supporting frame, awashing tank pivoted as before described; tiie'oiothing on enteiing at one side oi its center andadjaoent to the the oups diepiaoing a potion oi the liquid bottom to nook longitudinally on said frame, 65 'l5 therein, which displaced poftion ie ofced sfo-fing; mechanism to maintain the tank in through the mesh oia the Clothing; extending a hoi'izontai position, and a series' of oups into the oups, `Wiien thi l is again l with theii' mouths inthe planes ot the ends elevated, the' pievionsiyeen .fined action vv'iil oi the tank 'and opening to the interior theretake piace.. of against which the -contents of the tank 70. 2G From the foregoing it `sviii lie seen that aie aeiled on' the rocking of the tank.

the clothing in the tank A Will he subjected 9). in impioved Washing machine oonalternately to oioed passage of air and sisiting ot a rectangular i'ookable tank of iiqnid thm-ugh -'its iiaoiio, tlieeloy' ins-einig 1 gieatei length than oe'adth having inwardly l -a rapid cleansing action. The 'bottom oi' ineiined end potions, a series of suction 75 25 the'tank A is prefenabiy smooth on its.' sur cups formed in said end poitions and openy face so as' to einer 4no hindrance on obetrnoing to the inteiior' of the tank against which tionto the clothing in paesing jiom one end the lothing and liquid in the tank are im.-y of the tank to the othe; tl rapidity with neiied when the tank is rocked for the pur- Wliioh the clothing.. tails from one end o1?. the 1bose et forcing the liquid through the oloth- 80V 3,0 tank to the other having an'impotani, bean ing; and cooperating with the inclined ends ing inthe eiieotivenese oi the machine. for momentarily retaining the clothing The inciination of the ends ozt'tiie tank against the ends oi the tank as they move Vgives ita Wedge shaped formation, 'theieioy yupward to allow 'theziiquid in the tank to increasing the tendency of the clothes to ad-l inove from end to end thereof in advance of Se heie to the end ot the tank, and deeieasinf,` "ine clothing. v tlieiin vtendency to ioonnee 'back tovvai'd the i3. in a Washing machine, a clothes reoeivmiddle o' the, 'tank when iinpelled against ing tank 'tiltable about a pivot at its' lovvei' the ends tlieieof,"thns insuifring a mote oon portion and with end walls and a iiat lootoentrated hlov being; stinek the Watei by the tom, said Walls being provided With a series 90 '4o clothes, vloeoause (of the tendency ot the lot invvardiy opening, staggered pockets into clothes to Wedge or jam in the owners. lwliioh Clothes Wili be impinged'and held by it will be eeen' that loymeirnentaiily heid gs-notion aiternately dating tilting of the ing the oiothing at the ends of the tank as tank.

the lattei' move upward, theiiqnid thei'ein 4 in testimony wlieieoi". i have hereunto set 95 45 will nieve to the oppo y"te end ofthe tank my lia-nd inthe piresenoe'o two subscribing in advanceE oi'2 the iotliing, thus?insuring1 a Witnesses. y uantit f oi liouid eine' aceninnatedin tne Y 1 r, ieivermiist en L the tank pievions to the R'BEE E' CAMPBELL elease of theelothing; :from the tippen e v-`theieo. fi di-avvV eti? eook 13 is mounted e entre oi the lower-most oups 12 il? me@ l 1Wi tnesses:

ii. T. "Wann, 

